How to reduce PDF file size on Mac OS X?
PDF files has great compatibility for operation systems and devices, so we’d love to share or archive files in PDF formats. But PDF can come bloated file sizes that can choke the email service, or your website server. You may be interested in reducing PDF file size in many conditions. Follow this guide, you’ll learn how to reduce PDF file size with Compress PDF for Mac.
Double click on the app icon in Applications folder, you’ll see following interface
Drag and drop a PDF file to the file field, the compression will start instantly with the default preset option.
There are several preset compressing options. For different PDF files, you may need to choose the right option in order to reduce PDF file size efficiently.
If the image in your PDF data has lower image scale or quality, but you choose an option with higher dpi and higher quality, you’ll get this error message. You should try another preset option. For example, if the default setting 96 dpi, medium quality can’t compress a PDF file, you should try lower dpi such as 72 or 50 with lower image quality. But if 50 dpi and low quality can't compress a PDF file, the PDF file may be already compressed, or doesn’t contain any image elements within the original PDF file. Like all the other similar apps, even Adobe Acrobat can't reduce PDF that was compressed before.
After compression, you can save the file to your computer, or send itvia email as attachment directly.